DM231 Magnetostrictive Level Transmitter

The Drexelbrook DM231 level transmitter offers high accuracy magnetostrictive sensing performance with field programmable span.
The Drexelbrook DM231 is an explosion proof liquid level transmitter offering high accuracy measurements based on the magnetostrictive sensing technology.

The DM231 comes with a Modbus RTU digital output (optional analog output converter available) for total level, interface level and temperature sensor outputs. 

Sensors are available in 316SS rigid designs with a choice of single or dual NPT mountings. Temperature sensors are evenly distributed over the active length of the rigid 316SS tube.

Due to a wide selection of floats and mounting accessories this level transmitter fits virtually any application.

The DM231 level transmitter is FM approved for Class 1 Div. 1, Zone 1 Explosion Proof hazardous area installations. It is easy to install and requires no calibration.

Key Features
• No calibration required
• Modbus RTU output
• Accuracy: 0.01%
• Span length: 316SS 20” to 288” (508 - 7315 mm)
• Pressure rating of 316SS tube: 1000 psig (69 bar)
• Power requirements: 10 - 30 VDC
• Temperature range:
Process: -40°F to 257°F +/-1°F (-40°C to 125°C +/- 0.5°C)
Ambient: -40°  F to 185° F (-40°C to 85°C)

Product type
Level sensor, Float level switch, Fluid level sensor, Level gauge, Level controller, Level probe, Liquid level sensor, Magnetic level sensor, Oil level transmitter, Bin level indicator

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  • Documentation +

  • Application Notes / How To Guides +

    • Gas Plant Automation and Control

      Condensation, changing compositions, maintenance and stratification can cause problems in level control. Drexelbrook offers the ideal solution.

    • Oil Storage Solutions for Level Interface and Temperature

      Save time and money by using the DM231 magnostrictive level system for temperature and level measurements in oil tanks.

    • Gas Transmission Plant Level Solutions

      Avoid constant maintenance and re-calibration due to condensation and compositions change. The Drexelbrook DM300 is unaffected by density, coatings and variations.

    • Liquid Interface Measurements

      RF Admittance has a unique inherent ability to separate the electrical (Radio Frequency) current flow between a conductive and non-conductive liquid.